Non-existent customer service

I currently have a short term insurance policy with Momentum and have tried to add homeowners insurance cover to it. After 17 days, 4 requests to call me back, multiple (6+) emails, I am still unable to finalise a quote (I've had a single response in this entire time). If it's this difficult to give them money, I'd hate to know the trouble it would be to make a claim. I caution avoidance. There seems to be disinterest in customer service prevalent throughout the insurance industry and Momentum is clearly intent on reinforcing this standard.